Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
030053goodexcellent81excellent
020044goodexcellent71excellent
010045goodexcellent81excellent
000041goodexcellent81excellent
230048goodexcellent81excellent
220044goodexcellent91excellent
210045goodexcellent81excellent
200043goodexcellent101excellent
190067lightly pollutedexcellent131excellent
180072lightly pollutedexcellent121excellent
170057goodexcellent121excellent
160061lightly pollutedexcellent111excellent
150056goodexcellent91excellent
140053goodexcellent91excellent
130050goodexcellent91excellent
120057goodexcellent91excellent
110057goodexcellent101excellent
100050goodexcellent91excellent
090046goodexcellent71excellent
080044goodexcellent51excellent
070053goodexcellent71excellent
060050goodexcellent71excellent
050049goodexcellent71excellent
040047goodexcellent71excellent